The UK’s Medicines and Healthcare products Regulatory Agency (“MHRA”) is seeking industry feedback on its new draft guideline on individual messenger ribonucleic acid (“mRNA”) cancer immunotherapies (the “Draft Guidance”).  Building on the success of mRNA vaccine technology in response to the Covid-19 pandemic, the technology is now being adapted to target diseases such as cancer.  The MHRA aims to provide a streamlined robust regulatory framework for the approval of such personalised mRNA-based cancer vaccines without compromising safety.

The Draft Guidance covers the regulatory classification of these novel cancer treatments, product design and manufacture, non-clinical and clinical development, pharmacovigilance and the distribution of information to the wider public.  Notably, the MHRA explicitly acknowledges that the regulatory and scientific principles discussed in the Draft Guidance could broadly apply to other disease indications or technologies that could benefit from personalisation or individualisation.  Therefore, industry should be aware that the scope of the Draft Guidance may be extended in the future beyond mRNA cancer immunotherapies that use lipid nanoparticle delivery systems to other delivery systems and disease areas.  Manufacturers, developers, patient organisations and other stakeholders have until 31 March 2025 to comment on the Draft Guidance.

We explore some of the interesting regulatory considerations arising from the Draft Guidance below.